Вход

вход по аккаунту

Патент USA US3065320

код для вставки на сайт или в блог

Ширина: (aвто)

Высота:

ссылки на документ

адрес страницы документа

адрес полноэкранного варианта

короткий адрес

Nov. 20, 1962
R. CROSS
3,065,310
MAGAZINE FOR A TAPE RECORDER
Filed April 2, 1958
JUG_ Z_
Z5 12/ 25 17 27
.IrL’
22'
FIG’: 3
26
1N VENTOR.‘
Rad/2y 6'1’06'8,
Bw Ad/TTORNEYS.
<
United grates Patent 0 i
3,065,311]
Patented Nov. 25}, 1962
i
2
3,?65,3l9
which places the tape 22 in playing position in the re
corder. Lower level 25 is substantially square in shape
and has an opening 27 in the bottom to accommodate
spindle ‘17. Upper level 26 is raised to carry the tape
MAGAZINE FER A TAPE RECORDER
Hadley Cross, Cynwyd, Pa, assiguor to Roy W. Keeier,
' Ralph W. Shaw, Jay C. Fonda, Radiey Cross, Richard
E. Messmer, and John F. Donohue, Philadeiphia, Pa.
Fiied Apr. 2, 1958, Ser. No. ‘725,856
5 Claims. (6J1. 179—1i)€i.2)
22 as it rises up out of the coil on turntable 13 and pro
ceeds to playing position.
In order to achieve the maxi
mum use of space in accommodating a number of play
ing heads 3%], 31, 32, and 33, the forward portion 34 of
upper level 26 is curved. The playing heads may be any
and more particularly to a fully enclosed tape magazine 10 desired combination of recording, reproducing and eras
ing heads. They are urged toward the tape 22 by coil
for an automatic magnetic tape recorder.
spring 41. The magazine 10 is further undercut at 35'
In the art of magazine tape recorders need has arisen
to accommodate driving capstan 36 which is a part of the
for recording and reproducing apparatus which will
recorder. The curved shape of forward portion 34 pre
record or play for extremely long periods of time and
will automatically change from one type of message to 15 sents a convex tape surface to the playing heads. This
insures minimal contact between tape and playing heads
another without signi?cant interruption. The need is
which provides better playing and reproduction. It will
particularly acute in the ?eld of aviation where a re—
This invention relates to a magazine for a tape recorder
corder and player is required which will automatically,
be understood that it is not necessary to use a number of
the following description and drawings.
from the playing heads. The tape passes the playing
heads and continues between capstan 36 and idler roller
38 and thence past intake guard 39 to the coil on turn
playing heads and that the bene?t of the invention is
selectively play music, announcements, and/or other en
tertainment and information. In addition, the units for 20 also obtained when only one playing head is used.
As shown in FIG. 1, the tape 22 proceeds out of the
such purposes must be compact, able to withstand varia~
coil on turntable 13 along the edge of guide 2%. At this
tions in temperature and pressure and changes in position
point the loop is twisted. The twist provides what is
incident to normal ?ight conditions. Inherent in any
known as a “Mobius loop” by virtue of which the tape
such recording unit where magnetic tape isv used is the
need for a self-contained tape magazine which will se 25 reverses itself as it proceeds through the recording.
Thus, when a given point on endless tape 22 passes the
curely carry the tape and deliver it smoothly to playing
playing heads for the second time the reverse side of the
or recording heads.
7
tape faces the playing heads. This makes it possible to
It is an object of this invention to provide a self-con
use both sides of tape 22 for recording and reproducing
tained magazine for an automatic tape recorder which
will smoothly and continuously deliver magnetic tape to 30 purposes. Tape 22 passes the outside of guide 20 and
passes along the inner wall of bottom tray 11 to slot 37
playing or recording heads.
(FIG. 3) formed in the forward portion 34 of upper level
it is a further object of this invention to provide a mag
26. Forward portion 34- is cut out, as shown, at the
netic tape recorder magazine which will present the tape
points indicated as 42 which would normally contact the
to recording or playing heads in a substantially smooth
playing heads 30, 31, 32, and 33. These cutouts 42 are
condition.
provided so that the playing heads will be urged against
It is a further object of this invention to provide a
the resilient tape without interference from the substan
magnetic tape magazine which will deliver the magnetic
tially rigid backing material 34. It has been found that
tape to recording and playing heads substantially free of
a rigid backing material for the tape 22 at the playing
tension in the delivery.
Other objects and advantages will be apparent from 40 heads causes distortion in the signals transmitted to or
FIG. 1 is a plan view partially cut away of a tape
magazine, embodying the principles of the invention, in
table 13.
place in a magnetic tape recorder.
In operation, tape 22 is moved both by turntable 13,
FIG. 2 is a sectional View along the line II—II of 45
FIG. 1.
FIG. 3 is a perspective view of the magazine of FIG.
1 with the tape and turntable removed.
FIG. 4 is a perspective view of the turntable of the
magazine shown in FIG. 1.
The magazine of this invention includes certain of the
novel features of the co-pending application of Jay C.
Fonda, Serial No. 570,180, ?led March 7, 1956, now
United States Patent No. 2,908,769, relating to a tape
55
recorder and is an improvement upon that invention.
driven by spindle 17, and capstan 36. The buildup of
tension in the tape 22 is thus prevented. By this means
a smoother flow of tape 22 past recording and playing
heads 3t}, 31, 32, and 33 is maintained.
The two level construction of bottom tray 11 of maga
zine 10 is speci?cally adapted to the normal delivery of
tape 22 from and to turntable 13. Tape 22 is delivered
from the center of the coil 221 on turntable 13 and as it
issues from the coil it rises vertically out of the plan of
rotation. This vertical movement is necessary and is
enhanced
by the construction of turntable 13, shallow
The magazine 10 has a tray 11 and a cover 12. When
conical surface 14 and conical surfaces 16 assist the posi
fully assembled, the cover 12 is rigidly a?ixed to the
tive delivery of the tape from the center of the coil. It
tray 11 by means of screws 9. A snap or other type of
is therefore necessary in order to prevent interference
closure may be used. Turntable 13 is disposed within
with the normal ?ow of tape 22 to place the playing
60
the tray 11 and is adapted to rotate in response to the
heads 30, 31, 32 and 33 vertically above the plan of the
drive of spindle 17. Spindle 17 is not a part of the
coil 221 on turntable 13.
magazine but is a part of the drive mechanism of the
The tape magazine made according to this invention
recorder, in which magazine 10 is used. Turntable 13
and the particular magazine illustrated in the drawings
has a shallow conical surface 14 and a central cone 16. 65 provide an endless coil of magnetic tape which can be
Rim 15 retains the tape in position on the turntable 13.
played on both sides without interruption and which can
Cover member 12 has depending guides 20 and 21, which
be used with a number of playing heads in a compact
retain the tape coil 221 in a substantially cylindrical shape
container. The playing heads 30, 31, 32, and 33 may be
on turntable 13. Guide pin 8 also depends from cover
arranged to perform any desired function of which they
member 12 for the same purpose.
70 are capable. As shown, they are positioned at di?erent
Tray portion 11 has two levels: a ?rst level 25 in
vertical levels along the width of tape 22. For example,
which turntable 13 is positioned and a second level 26
each of the four playing heads may be set to play upon
3,065,310
3
a different longitudinal track on tape 22. By virtue of
the “Mobius loop,” the number of available tracks is in
creased to eight. By selecting the playing heads to be
used, the particular track to be played may be selected.
It will be apparent that a great many possible variations
may be made in this ?exible arrangement of magnetic
4
is delivered from said housing, said projecting member
being undercut to form a slot for carrying said tape,
portions of said projecting member being cut out at points
corresponding to the positions of playing heads in said
tape recorder, said projecting member being disposed in
a vertically offset plane with respect to said housing at
tape and recording heads.
the level at which said tape is delivered from said housing.
It will be apparent from the foregoing description that
3. In a magazine for a tape recorder a turntable com
the term “playing heads” has been used throughout to
prising a disc portion sloping upward toward the center
mean recording, erasing and reproducing heads with simi 10 thereof, a conical center portion ?xed at the center of
lar use of the term “playing,” and it is thus that these
said disc and having a substantially greater slope than
terms are to be understood.
said disc portion and retaining means for retaining a coil
of tape in position on said disc portion comprising a
I have illustrated and described the best form of embodi
raised rim about the circumference of said disc portion.
ment of my invention now known to me it Will be ap 15
4. In a tape recorder having a plurality of magnetically
parent to those skilled in the art that changes may be
sensitive playing heads and driving means, a magnetic
made in the form of the apparatus described without de
tape-storing housing, an opening in the bottom of said
parting from the spirit and scope of the invention, as set
housing to accommodate a spindle driven by said driving
forth in the appended claims, and that in some cases cer
means, a turntable in said housing adapted to be mounted
tain features of my invention may be used to advantage 20 on said spindle, an endless coil of magnetic tape disposed
without a corresponding use of other features.
on said turntable and extending out of said housing, said
Having thus described my invention, I claim:
tape forming a mobius loop, said tape adapted to be
1. A magazine for a tape recorder having playing
driven by said capstan and means integrally and rigidly
heads, a spindle for driving said tape magazine and a
connected with said housing for placing said tape in
capstan for moving a magnetic tape, comprising a bottom
operative contact with said playing heads, said means
While in .accordance with the provisions of the statutes,
tray having a lower level substantially square in shape
and provided with an opening in the bottom thereof for
accommodating said drive spindle, said tray having an
upper level with a curved, forwardly projecting tape
carrying member, said tape-carrying member being slotted 30
to accommodate said magnetic tape and being cut out at
being disposed in a plane parallel to the plane of said
turntable and substantially offset with respect thereto.
5 . In a tape recorder, a plurality of magnetically sensi
tive playing means disposed along a curved path, a curved
substantially rigid tape carrying member substantially
spaced apart points to coincide with the points of contact
conforming in shape to said curved path disposed adja
cent said playing means for continuously delivering a
of the playing heads of said tape recorder with said mag
netic tape carried in said tape carrying member, said tape
carrying member being undercut to accommodate said
magnetic tape to said playing means, yieldable means for
urging said playing means into operative contact with
said tape, said tape carrying member having a slot carry
drive capstan for moving said magnetic tape therethrough,
ing the magnetic tape and having a portion thereof adja
a guide member on said bottom tray for guiding said
cent said tape and opposite each of said playing means
cut out to render said tape substantially yieldable at its
point of contact with each of said playing means.
magnetic tape from said tape-carrying member past said
tape-driving capstan into said bottom tray, a cover mem
ber substantially conforming in shape to said bottom tray 40
having a pair of aligned depending guide members and
a guide pin for maintaining a coil of magnetic tape in
position in said bottom tray and a turntable in the lower
level of said bottom tray centered over the opening there
in to accommodate a drive spindle, said turntable having
a disc portion sloping upward toward the center thereof,
a conical center portion and a raised rim about the cir
cumference of said disc portion.
2. A magazine for a tape recorder comprising a hous
ing, rotatable means in said housing for storing a mag 50
netic tape and for continuously moving said tape out of
said housing, a projecting tape-carrying member rigidly
connected to said housing for receiving said tape as it
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,363,627
Van der Schalie _______ __ Nov. 28, 1944
2,651,964
Doyle ______________ __ Sept. 15, 1953
2,699,332
2,778,636
2,908,769
2,921,787
2,982,489
MacKenZie ___________ __ Jan. 11,
Eash ________________ __ Jan. 22,
Fonda _______________ __ Oct. 13,
Cousino ______________ __ Ian. 16,
Horres _______________ __ May 2,
1955
1957
1959
1960
1961
FOREIGN PATENTS
532,989
Italy _________ _.._\, ____ __ Sept. 13, 1955
L“.